Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 870

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-870 A Brighton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-870 0 Brighton MA   892D ONVOY, LLC - MA 128   2014-09-19   
617-870 1 Brighton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-11-08   
617-870 2 Brighton MA   624H ONVOY SPECTRUM, LLC 128   2021-11-11   
617-870 3 Brighton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-09-10   
617-870 4 Brighton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-01-02   
617-870 5 Brighton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-870 6 Brighton MA   892D ONVOY, LLC - MA 128   2014-09-19   
617-870 7 Brighton MA   318J COMCAST IP PHONE, LLC 128   2013-10-12   
617-870 8 Brighton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-08-09   
617-870 9 Brighton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2021-09-07   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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